From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 6 Aug 2007 22:05:10 +0000 (+1000)
Subject: [POWERPC] Fix initialization and usage of dma_mask
X-Git-Tag: v2.6.23-rc3~9^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f2ea1fd3f97ab7a809e939b5b9005a16f862439;p=pandora-kernel.git

[POWERPC] Fix initialization and usage of dma_mask

powerpc has a couple of bugs in the usage of dma_masks that tend to
break when drivers explicitly try to set a 32-bit mask for example.

First, the code that generates the pci devices from the OF device-tree
doesn't initialize the mask properly, then our implementation of
set_dma_mask() was trying to validate the -previous- mask value, not the
one passed in as an argument.

This fixes these problems.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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